Hi Bill and All,
--- "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
>
> >
> > I will be receiving in less than 10 days a
> powerful nicad battery pack
> >for the current eliminator,An wish Eric to also
> receive these same batteries
> >for his record breaking jounior dragster driven by
> his wife Tracy.So Eric
> >please call before 7pm, early to bed early to rise
> Dennis Kilowatt Berube
>
>
> I would strongly advise against putting
> flooded NiCads in a Jr
> Dragster. While it is not prudent to run them in an
> adult dragster, there
> is no reason to expose a child to the hazards of
> spraying potassium
> hydroxide from flooded NiCads when much safer AGM
> batteries can be used
> instead. It is a performance limited class, after
> all. Flooded batteries of
> any type are specifically prohibited in the electric
> powered Jr Dragster
> draft rules.
I believe your assement of the dangers of flooded
ni-cads to be overblown.
They are nowhere near as bad as LA flooded or SLA
batts.
Agm's spray batt acid too if run too hot, too hi
charge, discharge like you do in racing and it's spray
is a lot worse the ni-cads.
I had a bad wreck on my e-bike at 25 mph, sorry
it's the only one I've had, and the batts hit hard but
no electrolyte came out at all, in fact didn't faze
them at all.
The SAFT caps are at least as good as a SLA
batt's vents and the Saft cases seem much stronger
too.
Even in my baddest overcharging accidents, and
I've had too many, a little electrolyte barely
bubbled out. No spray at 150F and 1C charging.
Would SLA's do better?
Would SLA's even work well after venting badly?
>
> For safety reasons, NEDRA has never allowed
> flooded electrolyte
> batteries in dragsters, Jr dragsters, or
> motorcycles. This is because the
> liquid electrolyte poses a hazard in the case of an
> accident or in the
> all-to-common case of a burst battery. The
> electrolyte sprays out of the
> battery and can injure the driver. That is why NEDRA
> requires "absorbed
> glass mat" (AGM), starved electrolyte, or gelled
> electrolyte batteries in
> these type vehicles
If a SLA/ gel batt is hit the acid will come out in
a bad wreck too. This as a problem that is easily
handled in both types and overblown.
>
> While it is technically possible to safely
> run flooded NiCads in
> a dragster, unless proper precautions are taken,
> this could present a major
> safety hazard. Flooded batteries must be housed in a
> box that will safely
> contain the electrolyte in the case of a burst
> battery (or batteries) or an
> accident. This is not easy to accomplish.
You'll need these a lot more with SLA's than
SAFT's flooded!!! Both should have them in racing or
reg use.
>
> Flooded NiCad batteries use potassium
> hydroxide as an electrolyte.
> It is not dissimilar to liquid Drano. The safety
> hazards are about the
That is a matter of opinion. I've had both on my
skin. I have very light skin and the LA is a lot worse
the ni-cad's. It's a lot less dangerous than drano in
reality.
Ni-cads electrolyte main thing is it's slippery
but just some water and it washes away.
I've, on purpose, left it on my skin for 20 minutes
to see what would happen and not much did. Much safer
than LA acid. I don't suggest trying this, alway wash
it off within 5 minutes, but it shows a lower level of
danger than LA.
> same. A key hazard that is not readily apparent is
> that the potassium
> hydroxide electrolyte produces hydrogen gas when it
> comes in contact with
> aluminum. (This reaction also produces quite a bit
Like LA acid doesn't???
> of heat.) Thus, battery
> boxes for flooded NiCad batteries must NOT be made
> of aluminum. They must
> be made from stainless steel, nickel, Lexan, or some
> other material that
> does not react chemically with potassium hydroxide,
> but is mechanically
> suitable to contain the batteries and electrolyte in
> a wreck. Also, parts
> of the vehicle that are adjacent to the battery box
> must not be made of
> aluminum as they might come in contact with battery
> electrolyte dripping or
> spraying from a damaged battery box after an
> accident.
Again what's the difference from LA/ SLA? If you
say SLA's don't vent while racing I have to wonder
about you.
SLA's have never vented on you?
jerry dycus
>
> _ /| Bill "Wisenheimer" Dube'
> \'o.O' <[EMAIL PROTECTED]>
> =(___)=
> U
> Check out the bike -> http://www.KillaCycle.com
>
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